Wood Furniture Waste–Based Recycled 3-D Printing Filament

Pringle, Adam; Rudnicki, Mark; Pearce, Joshua M.

doi:10.13073/fpj-d-17-00042

Cited by 59 publications

(62 citation statements)

References 29 publications

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“…PLA has also been successfully used in a number of polymer matrix composites [25][26][27][28][29][30]. These advances in sandwich structures and polymer/natural fibre composites open up the potential to overcome one of the primary limitations of FFF/FDM in load bearing applications: highly anisotropic properties having particularly low stiffens and strength in the direction of layer deposition (z-direction) [31][32][33][34]. A review by Ngo et al [35] summarised the main methods commonly utilised in additive manufacturing among which FDM was discussed.…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties of 3-D printed truss-like lattice biopolymer non-stochastic structures for sandwich panels with natural fibre composite skins

Azzouz

Chen

Zarrelli

et al. 2019

Composite Structures

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Section: Introductionmentioning

confidence: 99%

Mechanical properties of 3-D printed truss-like lattice biopolymer non-stochastic structures for sandwich panels with natural fibre composite skins

Azzouz

Chen

Zarrelli

et al. 2019

Composite Structures

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“…In addition, to the commercialized 3-D printing filaments, there is also a growing body of literature on the ability of FFF to use waste plastic/recycled plastic filament such as PLA [47][48][49][50], high density polyethylene (HDPE) [51][52][53], ABS [53][54][55], as well as waste wood composites [56] and carbon fiber reinforced composites [57]. This has the potential to reduce the costs of 3-D printing further and make the accessibility for 3-D printing feedstock greater in a disaster situation as only a recyclebot (waste plastic 3-D printer filament extruder [51]) would be needed and solar-powered recyclebot systems have already been demonstrated [55].…”

Section: Kijenzi 3-d Printer's Ability To Make Useful Partsmentioning

confidence: 99%

Development of a Resilient 3-D Printer for Humanitarian Crisis Response

et al. 2018

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Rapid manufacturing using 3-D printing is a potential solution to some of the most pressing issues for humanitarian logistics. In this paper, findings are reported from a study that involved development of a new type of 3-D printer. In particular, a novel 3-D printer that is designed specifically for reliable rapid manufacturing at the sites of humanitarian crises. First, required capabilities are developed with design elements of a humanitarian 3-D printer, which include, (1) fused filament fabrication, (2) open source self-replicating rapid prototyper design, (3) modular, (4) separate frame, (5) protected electronics, (6) on-board computing, (7) flexible power supply, and (8) climate control mechanisms. The technology is then disclosed with an open source license for the Kijenzi 3-D Printer. A swarm of five Kijenzi 3-D printers are evaluated for rapid part manufacturing for two months at health facilities and other community locations in both rural and urban areas throughout Kisumu County, Kenya. They were successful for their ability to function independently of infrastructure, transportability, ease of use, ability to withstand harsh environments and costs. The results are presented and conclusions are drawn about future work necessary for the Kijenzi 3-D Printer to meet the needs of rapid manufacturing in a humanitarian context. Yet, supply chain logistics for humanitarian responses are some of the most complex that exist. It is challenging to forecast both the demand (due to difficulties in knowing both the timing of a disaster and details of the population affected) and the supply, which is often fueled by donations [4]. A massive mismatch between the supplies delivered and the supplies that are needed is often inevitable both in quantity and kind [2,3,5]. As 60-80% of all aid money is spent on procurement, this mismatch represents not only costly errors but errors that can have negative long-term effects on local markets and economies [5].Rapid manufacturing using 3-D printing is a potential solution to some of these pressing issues in humanitarian logistics. This has become potentially feasible with the open source 3-D printers developed from the self-replicating rapid prototyper (RepRap) project [6][7][8]. The RepRap project has driven down costs of 3-D printing to fit resource-constrained contexts like those found in the developing world or during a crisis [9]. The potential for 3-D printers in humanitarian aid work has been able to capture the interest of practitioners in the field [10], as 3-D printing can have positive effects on nearly every step of the humanitarian supply chain [5].3-D printing can reduce time and money used in the procurement of goods [11,12] by reducing the amount of capital required for manufacturing at a given location, allowing distributed manufacturing [13][14][15] or more localized manufacturing to occur [3,10]. By manufacturing goods locally at the site of a disaster response, the only materials that need to be shipped to the site of a disaster are the raw materials needed...

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“…There have been substantial recent developments in converting waste plastic/recycled plastic in 3-D printing filament with a recyclebot (waste plastic 3-D printer filament extruder [78]) and then use it for 3-D printing. Thermopolymer processes already developed include polylactic acid (PLA) [79][80][81][82], high-density polyethylene (HDPE) [78,83], acrylonitrile butadiene styrene (ABS) [84][85][86], as well as waste wood composites [87] and carbon fiber reinforced composites [88]. Future work is needed to design and optimize each of these components, as well as an overall cost optimization of the system.…”

Section: Future Workmentioning

confidence: 99%

Design Optimization of Polymer Heat Exchanger for Automated Household-Scale Solar Water Pasteurizer

Denkenberger

Pearce

2018

Designs

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Abstract:A promising approach to reducing the >870,000 deaths/year globally from unsafe water is flow-through solar water pasteurization systems (SWPs). Unfortunately, demonstrated systems have high capital costs, which limits access for the poor. The most expensive component of such systems is the heat exchanger (HX). Thus, this study focuses on cost optimization of HX designs for flow-through SWPs using high-effectiveness polymer microchannel HXs. The theoretical foundation for the cost optimization of a polymer microchannel HX is provided, and outputs are plotted in order to provide guidelines for designers to perform HX optimizations. These plots are used in two case studies: (1) substitution of a coiled copper HX with polymer microchannel HX, and (2) design of a polymer microchannel HX for a 3-D printed collector that can fit in an arbitrary build volume. The results show that substitution of the polymer expanded HX reduced the overall expenditure for the system by a factor 50, which aids in making the system more economical. For the second case study, the results show how future system designers can optimize an HX for an arbitrary SWP geometry. The approach of distributed manufacturing using laser welding appears promising for HX for SWP.

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Wood Furniture Waste–Based Recycled 3-D Printing Filament

Cited by 59 publications

References 29 publications

Mechanical properties of 3-D printed truss-like lattice biopolymer non-stochastic structures for sandwich panels with natural fibre composite skins

Mechanical properties of 3-D printed truss-like lattice biopolymer non-stochastic structures for sandwich panels with natural fibre composite skins

Development of a Resilient 3-D Printer for Humanitarian Crisis Response

Design Optimization of Polymer Heat Exchanger for Automated Household-Scale Solar Water Pasteurizer

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